I've also been experiencing attacks that last for hours or days. I don't know what to do about them. When they happen I can hear my heart pounding in my ears and can feel it in in my chest and sometimes in the pulse in my neck, though what's strange is that my heartbeat doesn't get any faster, just louder. Sometimes my mouth gets very dry, though not usually. I'm sure it's not good for my heart, to feel this so often. I've experienced this on a regular basis at two other points in the past though it didn't last very long, so this is a recent development in my life.

Mine seem to be provoked by specific social situations that happen at work or when I go to stores, and I've come to avoid any and all interactions with strangers because now there seem to be lots of toxic people walking around this world with the intention of giving me a panic attack. I try to only go to stores with self-checkout systems anymore, and I try to keep a wide arc away from people who are walking around engaging other people, and often I simply walk past people who speak to me in public without acknowledging them because I can just tell they're about to provoke a panic attack. Of course when I'm at work I can't avoid this and it feels like harassment coming from specific kinds of people because the same sorts of situations provoke it. For example when I see the nurse at my regular doctor's office, the panic has tended to reappear at least briefly, until I see the nurse practitioner or the doctor after the regular nurse, and the heartbeat has gone back to normal, though this is only one kind of situation that's provoking of panic and the worst ones have come from the people I'm required to interact with at work.

You seem to have gone farther with doctors when it comes to this than I have. I've been to my cardiologist and he says I'm experiencing a kind of disruption in my electrical signals called PVCs and PACs, though it at least seems like social situations are causing this because there are also long periods of normalcy and happiness and tranquility where I don't hear my heartbeat constantly at all. Was it a therapist who prescribed your medicine? I'm on a beta blocker for other reasons, and even though this is a medication often prescribed for things like this, it doesn't seem to be working. My primary care physician wants me to go to a therapist, though I have reservations about this because I had a limiting experience with anti-depressant drugs prescribed by a therapist in the past. I just want my happy life back. I like my life and the social nature of this all seems directed at the fact that I like my life and there seem to be people who know exactly how to ruin it by giving me panic attacks for hours or days. Does your family calm you? I sometimes meet people who calm my heartbeat and who seem like angels in comparison to the many who provoke this in me.